Read the Learn this! box. a) Underline must/have to + infinitive in the dialogue. Then complete the following sentences using must mustn't have to don't have to.

1 A hotel receptionist ______ be good at communication.

2 You ______ pay for the tickets in advance.

3 Examinees ______ switch off all modern gadgets during the exams.

4 You ______ leave litter lying around.

III. Read the text below and write on word in each blank to complete it

You might be a terrible friend and not event realize it. That should scare (1)_____________, it should!

You know what? Right now you should (2)_____________sweating profusely, pacing the floor, and asking yourself whether or not you know(3)_____________to be a good friend.

Sometimes our actions and the words that escape(4)_____________mouths stop going through a filter. Then eventually we’re not even conscious (5)_____________how horrible we are as a person or(6)_____________ friend.

We get so used to our friends that we become insensitive to the things we say and (7)_____________. Sure, that level of comfort can be a good thing, but at the same time a lot of ugliness can start leaking out. It could be a reflection of the (8)_____________ you really are

III. Read the text below and write on word in each blank to complete it

You might be a terrible friend and not event realize it. That should scare (1)_____________, it should!

You know what? Right now you should (2)_____________sweating profusely, pacing the floor, and asking yourself whether or not you know(3)_____________to be a good friend.

Sometimes our actions and the words that escape(4)_____________mouths stop going through a filter. Then eventually we’re not even conscious (5)_____________how horrible we are as a person or(6)_____________ friend.

We get so used to our friends that we become insensitive to the things we say and (7)_____________. Sure, that level of comfort can be a good thing, but at the same time a lot of ugliness can start leaking out. It could be a reflection of the (8)_____________ you really are

Choose the correct answers A, B, C, or D to complete the following sentences.

1. If you want to maintain a healthy weight, you _________ have snacks between meals.

A. shouldn't             B. should            C. must              D. don't have to

2. I __________ strictly follow the doctor’s instructions if I want to get better quickly.

A. shouldn't           B. must                C. can                D. don't have to

3. The government ___________ improve the infrastructure of big cities to boost the economy.

A. mustn't             B. doesn't have to            C. should             D. didn't have to

4. People living in high-rise buildings ___________ obey the safety rules and regulations strictly.

A. shouldn't              B. mustn't             C. may              D. have to

5. Lots of women in the past ___________ stay at home, look after their children, and do all housework.

A. must                 B. should                C. had to             D. have to

6. My parents respect my career choice, so I __________ follow in their footsteps.

A. mustn’t             B. don‘t have to           C. should            D. shouldn't